Toothbrush



FIG. 1 is a side elevational view of a toothbrush, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a sectional view taken along line 4--4 of FIG. 3; and

FIG. 5 is a sectional view taken along line 5--5 of FIG. 3. 

The ornamental design for a toothbrush, substantially as described and shown. 